Home / 256,632.18-384,941.79-69,638.82

Finding the Fourth Proportional to 256,632.18, 384,941.79 and 69,638.82

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Solution

The fourth proportional to 256,632.18, 384,941.79 and 69,638.82 is: 104,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,632.18 : 384,941.79 = 69,638.82 : x
  2. Step 2: Convert to fraction form
    256,632.18/384,941.79 = 69,638.82/x
  3. Step 3: Cross multiply
    256,632.18x = 384,941.79 × 69,638.82
  4. Step 4: Simplify right side
    256,632.18x = 26,806,890,800.79
  5. Step 5: Solve for x
    x = 26,806,890,800.79/256,632.18
  6. Step 6: Final answer
    x = 104,456.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.